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JPL Small-Body Database Browser
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91612 (1999 TJ30)
Classification: Main-belt Asteroid          SPK-ID: 2091612
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1376082018385299 4.0367e-08  
a 3.053025783663216 2.9673e-08 au
q 2.632904395406652 1.2846e-07 au
i 8.475232077528094 7.5911e-06 deg
node 201.4554022716937 2.9372e-05 deg
peri 115.5350098901247 4.726e-05 deg
M 358.3848481872336 3.3684e-05 deg
tp 2459009.241882873059
(2020-Jun-08.74188287)
0.00018234 TDB
period 1948.471846068199
5.33
2.8407e-05
7.777e-08
d
yr
n .1847601753786898 2.6936e-09 deg/d
Q 3.47314717191978 3.3756e-08 au
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      8071 days (22.10 yr)  
   first obs. used      1997-05-04  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51026  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:34:23  

Additional Information
 Earth MOID = 1.63418 au 
 Jupiter MOID = 1.91056 au 
 T_jup = 3.205 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO436412  
diameter diameter 5.630 km 0.895 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.046   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

91612 (1999 TJ30)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TJ30 = 1997 JY2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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